removing of sddm (debian 9 -kde5) to start in console mode then startx to start kde5

[Stephane L]

Hi I have tried to remove sddm from /etc/init.d but it starts always with 
sddm.I want to boot my debian 9 in console mode and do startx to launch kde5 as 
I do with debian 8 and kde4.does anyone know exactly how to do that ?